I am a TA who is pursuing my Ph.D.
Which of the following rules define $y$ as a function of $x ?$
$$\begin{array}{|c|c|}\hline x & {y} \\ \hline 9 & {3} \\ \hline 4 & {2} \\ \hline 1 & {1} \\ \hline 0 & {0} \\ \hline 1 & {-1} \\ \hline 4 & {-2} \\ \hline 9 & {-3} \\ \hline\end{array}$$
$$y=\sqrt{x}$$
$$x=y^{2}+4$$
List the ordered pairs obtained from each equation, given $\{-2,-1,0,1,2,3\}$ as the domain. Graph each set ordered pairs. Give the range.$$y=-3 x+9$$
List the ordered pairs obtained from each equation, given $\{-2,-1,0,1,2,3\}$ as the domain. Graph each set ordered pairs. Give the range.$$6 x-y=-1$$
